20424278

素因数分解:

$2^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1567}}^1$

素因数の和:1609

約数の個数: 32

約数和(自身を含む): 37632000

約数和(自身を除く): 17207722

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 343, 686, 931, 1567, 1862, 3134, 6517, 10969, 13034, 21938, 29773, 59546, 76783, 153566, 208411, 416822, 537481, 1074962, 1458877, 2917754, 10212139, 20424278]

約数ペア:

[(1, 20424278), (2, 10212139), (7, 2917754), (14, 1458877), (19, 1074962), (38, 537481), (49, 416822), (98, 208411), (133, 153566), (266, 76783), (343, 59546), (686, 29773), (931, 21938), (1567, 13034), (1862, 10969), (3134, 6517)]